package com.atguigu.gmall.realtime.app.dws;

import com.atguigu.gmall.realtime.app.BaseSqlApp;
import com.atguigu.gmall.realtime.bean.ProvinceStats;
import com.atguigu.gmall.realtime.common.Constant;
import com.atguigu.gmall.realtime.util.FlinkSinkUtil;
import org.apache.flink.table.api.Table;
import org.apache.flink.table.api.bridge.java.StreamTableEnvironment;

/**
 * @Author lizhenchao@atguigu.cn
 * @Date 2021/11/3 14:30
 */
public class DwsProvinceApp extends BaseSqlApp {
    public static void main(String[] args) {
        new DwsProvinceApp().init(4003, 1, "DwsProvinceApp");
    }
    
    @Override
    protected void run(StreamTableEnvironment tEnv) {
        // 1. 使用ddl建表与topic进行关联:  dwm_order_wide
        tEnv.executeSql("create table ow(" +
                            "   province_id bigint, " +
                            "   province_name string, " +
                            "   province_area_code string, " +
                            "   province_iso_code string, " +
                            "   province_3166_2_code string, " +
                            "   order_id bigint, " +
                            "   split_total_amount decimal(20, 2), " +
                            "   create_time string, " +
                            "   et as to_timestamp(create_time), " +
                            "   watermark for et as et - interval '3' second " +
                            ")with(" +
                            "   'connector'='kafka', " +
                            "   'properties.bootstrap.servers'='hadoop162:9092,hadoop163:9092,hadoop164:9092', " +
                            "   'properties.group.id'='DwsProvinceApp', " +
                            "   'topic'='" + Constant.TOPIC_DWM_ORDER_WIDE + "', " +
                            "   'scan.startup.mode'='earliest-offset',  " +
                            "   'format'='json'  " +
                            ")");
        
        // 2. 执行sql查询: 开窗聚合
        Table result = tEnv.sqlQuery("select" +
                                         " date_format(tumble_start(et, interval '5' second), 'yyyy-MM-dd HH:mm:ss') stt, " +
                                         " date_format(tumble_end(et, interval '5' second), 'yyyy-MM-dd HH:mm:ss') edt, " +
                                         " province_id, " +
                                         " province_name, " +
                                         " province_area_code area_code, " +
                                         " province_iso_code iso_code, " +
                                         " province_3166_2_code iso_3166_2, " +
                                         " sum(split_total_amount) order_amount, " +
                                         " count(distinct(order_id)) order_count," +
                                         " unix_timestamp() * 1000 ts " +
                                         "from ow " +
                                         "group by " +
                                         " province_id, " +
                                         " province_name, " +
                                         " province_area_code, " +
                                         " province_iso_code, " +
                                         " province_3166_2_code, " +
                                         " tumble(et, interval '5' second) " +
                                         "");
        
        // 3. 把结果表转成流, 写入到ClickHouse中
        tEnv
            .toRetractStream(result, ProvinceStats.class)
            .filter(t -> t.f0)
            .map(t -> t.f1)
            .addSink(FlinkSinkUtil.getClickHouseSink("gmall2021", "province_stats_2021", ProvinceStats.class));
            
        
    }
}
